Means for stoppering and opening containers



July 24, 1951 A. MATHISEN ET AL 2,562,110

' MEANS FOR STOPPERING AND OPENING CONTAINERS Filed Feb. 10, 1949 '7 Sheets-Sheet l I? I f I IV a f 19 27 a! I l i 23 27 g 30 29 v 18 N n vavnas 15 1%! 17 20 fl-fiJT/l/JEM, 16 :1 w} fife/war Wax/4 w;

July 24, 1951 A. MATHISEN ET AL MEANS FOR STOPPERING AND OPENING CONTAINERS Filed Feb. 10, 1949 III 7 Sheets-Sheet 2 July 24, 1951 A. MATHISEN ET AL 2,562,110

MEANS FOR SATOPPERING AND OPENING CONTAINERS y 24, 1951 I A. MATHISEN ET AL 2,562,110

MEANS FOR STOPPERING AND OPENING CONTAINERS Filed Feb. 10, 1949 7 Sheets-Sheet 4 l I 1 115 12.9 i 126 A 1/3 July 24, 1951 A. MATHISEN ET AL MEANS FOR STOPPERING AND OPENING CONTAINERS 7 Sheets-Sheet 5 Filed Feb. 10, 1949 July 24, 1951 A. MATHISEN ET AL MEANS FOR STOPPERING AND OPENING CONTAINERS 7 Sheets-Sheet 6 Filed Feb. 10, 1949 Wu w WM Jar .51. h a z 7 6 a ma I w /am m m M 2 us 2 00% 2 Z wV/ n W 40 2 July 1951 A. MATHISEN ET AL 2,562,110

MEANS FOR STOPPERING AND OPENING CONTAINERS Filed Feb. 10, 1949 7 Sheets-Sheet 7 /F m 4 j 137 I 1 0 4 7'35 1 2 4 4 4 i/ H; if]

' 120 a m 3 --/2& i 728 12f NVEA'M MAT/l/J'EM,

flh.

" cartridge.

. 1 I i 2.562,} 1T MEANS FOR STOPPERINGANDl OPENING l 1 l CONTAINERS ,1.

Anders Mathisen, sesame," London, andHarry Beckham, Randolph, Pall'Mall, London, Eng: land, assignors of one-fourth to Graviner Man ufacturing CompanyLimited, a British company, and one-fourth to The Wilkinson Sword Company Limited, a British company, both of London; England Application February,. 10, 1949 Serial No. I s

In Great Britain March 9, 1948.

Y '25 Claimsf (o1.-169-1 1) I This invention relates to fluid containers of the kindin which thedischarge of the fluid contents is "effected under the action of pressure gases evolved from the combustion of a cartridge suitably mounted in the container (hereinafter referred to'as 'of the kind described). Containers of the kinddescribed have hitherto been operated by a hand striking knob, actuation of which strikes the'percussion cap of the car-' tridgeto ignite the cartridge. g

"The object of the present invention is to provide a fluid container of the kind described which can be safely and reliably arranged for remote control operation. H v A fluid container made according to .the present invention comprisesa stopperi'ng device including a frangible seal, mean for rupturing said frangible seal to permit discharge of the container, means for generating pressure to eject the fluid when said frangible seal has beenifractured Instead of having a' 'p er'cussion'cap the car-f tridge may befig'nited by a suitable substance disposed adjacent to the cartridge and arranged to be ignited as by a detonator flash. The fluid cont'ainer'may have two or more fluid discharge outlets,' each'of which is closed by a seal which can be readily fractured.

The cartridge may be mounted in a holder means'may be provided forre'stricting the flow of pressure gases evolved by the cartridge from the holder into thefcontainer, for the purpose and means governed by the fracture of said frangible seal for initiating the. operation of said pressure generating means immediately after the fracture of the frangible seal. The means for rupturing the frangible seal may be remote controlled.

Means may be provided which operateauto-l matically when the seal is broken to'ignite the The seal may comprise adiscfplug or like mem berconnected to the wall of the dischargev outlet by a readilyfractured web or the like integral with the wall and withthe plug or the i The means for breaking the seal may be electrically actuated, or they maybe actuated by fluid pressure.

/,;;In the case that the means for breaking the seal are electrically actuated they may be ar-': ranged to explode or detonate a substance to blow out the plug or the like. The ignition of the cartridge may be-effected by an electrical'circ'uit which is, normally open'but is automatically closed when the sealis broken. Or the cartridge may have apercussion cap and ignition of the carhereafter described.

Other features of the invention are set out in:

the appended claims. I a In the accompanying drawings which'illustrate various forms of fluid'pressure appliance made according to the; invention all employing a cartridge for producingthe discharge pressure:

Fig; 1 illustrates an arrangement in which'the cartridge is ignited electrically Figs. 2' and 3 illustrate respectively two arrange-' ments in which the cartridge has a percussion cap and is ignited by a striker pin actuated mechanically" Fig. 4 illustrates an arrangement in which the cartridge is ignited by a detonator flash;

Fig. 4a is a section on line 'A-A, Fig. 4, illustratin the detonator arrangement;

Fig.1 .5'is an end view-or a fluid pressure appliance having l-tw'o discharge outlets, arranged to dischargeindifierent' 'directions, in which the cartridge is'ignited, by a detonator flash similar to the arrangement of Figs. 4 and 4a;

Fig. 6 is "a section on line VIIVII, Fig. 5;

Fig. '7 illustrates an arrangement somewhat similar to Fig; lfbutin which the pressure produced on detonationactuates a striker pin, and Fig. 7a i's' a section on line vnr 'v111, Fig. 7. f'fReferr'ing firstyto Fig. lof the drawings nu'' meral 2denotes a solid drawn copper'container or bottlewhich fcontain the fire extinguishing liquid. Numeral 3 denotes a'screw'threaded cap orhead secured to -the bottle in a liquid tight manner and incorporating an integral stopper or stud A machined out ofcap 3 and joined thereto byfidiaphragnfl 5 or thin section. The .stud 4 is'provided'with' a screw thread 6 which i en= gaged-by a ring nut I which confines a quantity of explosive material 8 in a groove 9 formed in the head 3. The stud 4 is bored out centrally and providedwithanelectrically ignitable fuse lllsecured in I stud 4 by a' holder device H," a transverse passage 12 forming a communication from the'end of the fuse It to the explosive material 8, whereby "ignition can be effected. {Ig

- ;niti'on of the fuse- I0 is effected by closure ,ofan' I8 electrically connected to lead I9 of the fuse I I] and conductor sleeve 20 i electrically con-.

nected to lead 2| of fuse I0. Contacts I8 and 20 are carried by a contact assembly 22 held by brackets 23 secured by means of screws 24 to ring nut I.

The above described arrangement is enclosed in a junction box fitting 25 secured by screws or other means 26 to head 3, the junction box being provided with an outlet orifice 21 to which distributing piping can be connected. When current is supplied to leads" I3 and I4 fuse I is energized to ignite the explosive-substance 8 which causes stu d 4 to fracture the diaphragm 5, so that the stud 4, including the ring Land the contact assembly 22 are blown out, thereby causing spring contacts I8 and ,20 to make contact with auxiliary spring contacts 28 and "29, these contacts being connected by means of electrical leads and suitably insulated terminals 30 and 3I secured in the junction box fitting 25.

The other end of the container 2 supports the pressure generating cartridge 32 in a metal holde r.-33. The. holder 33 is provided with a screw ring 34 which secures cartridge 32 in the holder I of axscrew threaded cap 61.

4 I ing. Head 3 isscrew threaded and has secured thereto a discharge fitting I on junction box 60 which is provided with a connecting nipple 6I to provide for the connection of discharge piping thereto. In this construction, the pressure generating cartridge is denoted 62 and is secured in a holder 63 of metal or similar material supported by three or more rods 64 secured to a ring device 65'he1d by the bott1e'50 and head 53, as shown in the drawing, and apertured at 66 to permit passage of liquid 5I from the bottle 50 into the junction box fitting 60, after blowing out stud 56. Cartridge 63 is in this construction provided with a percussioncap similar to a shot gun cartridge, and the cartridge is secured in holder 63 by means The cartridge percussion cap can be ignited by a percussion pin 68 carried by a stem 69 secured to a yoke III which I is again secured by means of tension rods II insulation block 38 secured to bottle 2 by screw 1 cap-39. The terminal blocks 36 and 31 are protested by a terminal block cover 40. I Cartridge holder 33 will commence to burn and generate gases at the end at which it is ignited and the burning action will burn through the cardboard'casing. Apertures- II are provided in thecasing 33 and are covered by athin metal foil sleeve 42 which also covers a. circumferential space 43 formed-in holder 33, thefoil sleeve '42 being soldered or otherwise secured inv a liquidtight. manner to the holder 33- at the ends 44.

When, as a result of the energisation of igni-. tion substance 35, the cartridge-commences to burn,.gases are discharged through apertures 4| andthe space 43, thereby exerting a considerable pressure on foil 42, causing this to fracture so that the. generating gases escape into the upper end of the bottle, forcing the liquid out of the apertu-red discharge orifice formed by the severance of the diaphragm 5. As will be evident it is not possible: in the construction shown to energise cartridge 32 before the stud 4 has been severed from the diaphragm 5 to permit spring contacts. I8 and 20 and 28 and 29 to come into contact.,,,

1 Referring now to Fig. 2 numeral denotes. a solid drawn copper container or bottle having only one open endor neck, the bottle being filled W-ithliquid denoted 5L In this case the discharge head ai sin the form of a brass. pressing 53, machined to form a thin diaphragm 54 by machining-.stud56-out of head 53. The stud 56 is screw threaded and provided with a ring nut 51, which confinesexplosive substance 58 in a groove 59 which; explosive substance can be ignited by an electrically ignited fuse, not shown in the drawwhich are secured in a second,yoke fitting 12 having a-rod I3 securedithereto, which rod-is: secured at theother end by means of a gland nut' I4 to stud 56. I To prevent liquid passing stem 69 and pin 68, into the cartridge casing a corrugated metal bel,-= lows I5 is soldered to cap 61 and to a flange of the stem 69, said bellows. I5 being capable ofrexe tension and contraction without fracture I As will be seen when theexplosive substance; 59 is ignited to blow out the stud 56 and ring 5T, rod-I3, by means of yoke;I2, rod II and yoke Ifl displaces stem 69 and forces pin 68 into con-. tact with the percussion cap in the cartridge 62,; causing the latter to ignite. Thus in this construction also ignitionof the cartridge 62 is not possible until stud 56 is blown out.

Theholder 63 is provided with holes I6 through which the gases generated escape into space H. under a thin metal .foil ring I8, soldered at the edges to holder 53 to prevent liquid entering the, cartridge casing.

Referring now to Fig. 3 the constructionof the container headis substantially identical to that shown-in Fig. 2, except. that a rod is secured to stud 56 by means of a screwed bush 8I anda circlip or wire ring 82, thearrangement. being such that when stud 56-and ring nut 51, are blown out the rod 80 is displaced therewith. i In this construction the pressure generating cartridge I3 -is mounted in a holder -84.- which,: again, is secured in a tubular. casing secured in an aperture in the spherical portion of con-. tainer 50 and secured thereto by resilient rings, 86 and a clamping ring nut 81. The holder 84 can be screwed into and removed from the casing 85 to enable the cartridge to be removed from the extinguisher, which is an advantage when the latter has to be stored, for example before use. The cartridge 83 is secured in holder 85 byia screwthread'ed cap 88. The tubular casing '85 is provided with an end fitting 89', which carriesa pair of pawls 90 mounted on pivotpins 9I and capable of actuation by a cam 92 carried by the rod 80. I l, Pawls 90 actuate a stem fitting93 carrying, a percussion pin 94 which ignites cartridgev 83 when the stud 56 is blown out. To preventv liquid entering past the stem 93 and pin 94 into the cartridge casing 85, acorrugated metal bellows device 95is secured to casing 85 and stem fitting. 9.3 as shown in the drawing. The displacement of percussion pin 94 and stem 93 is obtained by the action of cam 92 on the noses 96.0f the pawls an and by the action ofthenoses'91 of pawls so on the stem fitting93'.' r I To prevent accidental displacement 'of stem fitting 93, arising for example'by pressure variation in the container 50 due to temperature varia ing for free movement of-the screwed portion I02 in cam 92. s

When-stud 56 and ring 51 areblown out, rod 90 is pulled down by screwed bush 8 I causing the screwed portion I02 of the rod to move into contact with the screw thread II' and similarly causing withdrawal of reduced portion 99 of rod 80 from the pawl heels I 00,'whereby cam 92 causes pawls 90 to pivot on pins 9I owing to contact with the noses 96, this again causing'noses 91 to displace stem fitting 93 and to force the percussion pin 94 into contact with the: percussion 'cap in cartridge *83. I i

The generated gases: escape through apertures I04 in the holder '84, and pa's's through a recessed'space in thisholder I to apertures I06 in the tubular casing 65', and into space I01, frac5 turing'the metal foil sleeve I08 and escaping into the upper portion or container 50. Referring now to Figs. 4 and 4Anumeral H0 denotes a solid drawn copper container having only one opening or neck which islarge in comprison with the openings of the' bottles described in Figs. 1;'2 and 3. The bottle is now provided with the cap fitting III secure'd'to' the bottle in a liquid-tight manner, which 'fittiiig is provided with a rod-like projection H2 bored" out internally and provided with an external groove H 3'to form a'thin section diaphragm H4 and a removable plug portion H5. The cap fitting IHis further provided with a tubular member or stand pipe device I I6 soldered or otherwise secured in a liquidtight manner'to fitting III at 'I I1. Stem pipe H6 projects into close proximity tdthe spherical end of bottle H0,the end; however, beingse-aled' in a liquid-tight manner by a disc I I8, soldered at H9 to the end :of stand pipe H6, to form a liquid-tight joint.

The bottle when fittedwith partsIH and I I6 will be hermetically closed exceptfor a charging'plug device, not shownin the drawing, but which permits of introducinga fireextinguishing fluid. 1 In order to efiect discharge of the contents of container I I0 a false-or detachable discharge head is provided comprising a fitting I20 secured to cap fitting III by aglandnut I2I; a sealing Washer or gasket I22"being"provided between cap fitting m and fitting I20 to forms gas and liquid-tight jointwhen'nut I2I is screwed tightly ontoc-apIH.

Fitting I20 is provided with atubular extension I23 fitting closely under projection'l I2; 1 As shown in Fig. 4A, fitting I20 is provided with a pair of electrically ignited cletonators124, I24 which are disposed in drilled' passages I25, I25, communi eating with groove I I3. Electricalconnection is made to'detonators I24 by mean's oi a'known type of plug-in socket device I26 mouldedinto cover I21 of terminal block device'l28." The plug-in pins of the socket 'l-26' not"shdwn" in-the' drawing areelectrically connected to terminal screws I 29, these latter being connected by means of metal strips to contact points I30 and I3I. The arrangement is such that when an electric current is connected to contacts I30 and I3I ignition of detonators I24, I24! is effected in known manner thereby effecting detonation with the evolution" I of a large volume of gases, with explosive vio-' lence, thereby causing rupture of diaphragm H4 and blowing out the plug I I5, to permit discharge of the contents of container I 20 through suitable distributing piping connected to the suitably screw threaded discharge socket portion I32 of fitting I23.

As shown in Fig. 4, a recess I33 is formed in fitting I23 which communicates through a bore I34 with a cavity I35, also formed in fitting l 23.

The purpose of this arrangement is to effect ignition of a pressure generating cartridge I36,

which is mounted in a holder I31 screwed into cap fitting I20 by means of a screw thread I38 and is provided with apertures I39 which per-' mit escape of gases into the stand pipe H6.

When the pressure has risen sufliciently the gases will fracture the disc I I8 or blow it off its soldered joint H9 and escape into the container H0.

In this construction the pressure generating cartridge is not provided with a percussion cap,

but with a quantity of easily ignitable priming substance I40 which, when impinged uponby a flame of explosive gases from space H3 and through the bore I34 causes ignitionof cartridge As will be seen groove I I3 does not coincide' with recess I33, and, therefore, ignition of cartridge I36 is not possible before the diaphragm flash of explosive gas will be projected on to prim ing substance I40 causing ignition of cartridge I36 and subsequent generation of gases to expel the liquid in container I I0. 7

As will be appreciated fitting I23 is removable from the container I I0 by unscrewing gland nut I2I from cap III, and the fitting, including the cartridge I36 in its cartridge holder I31, can then be withdrawn from the container and stored separately; this may be an advantage in the case of fire fighting fluid containers provided with explosive devices when these are to be used upon military and other types of aircraft.

For storagepurposes a cover or cap device may be provided which fits on to cap portion III to protect parts H2, H4 and H'5against damage and also to cover the outlet from stand pipe H6.

Pressure generating cartridges I36 are more normally available with percussion caps instead of priming substance I46, and if it should be necessary to use, cartridges having percussion caps a similar arrangement to that described in connection with Fig. 3 may be fitted the holder I31 thenb eing suitably modified to provide space for the percussion pin and its piston like holder. In this case the gases from the bore I34 would act on'the piston to force the percussion pin into" contact withthe percussion-cap of the cartridge 7";- to efiect ignition of the cartridge. 'I'he-construm tion of this modification being fairly obvious is not separately'illustrated.

, Referring now to Figs. 5 and 6, these figure show an. enlarged neck solid drawn copper bottle it i- 200 of the usual bottle shape this being providedwitha cap fitting 20I in which a pair of discharge outlets are provided. More than two discharge outlets may be provided. As shown in Fig. 6=

I24 of Fig. in, an electrical plug-in socket 208 connected to a terminal block device 209 being provided for the purpose of effecting ignition of the detonators I24.

Cap fitting -20I has secured thereto a dual junction box fitting device 2I-0 having discharge outlets 2H and 2I2, the device 2|,0 being secured to the cap fitting 20I by screwed studs 2I3, 2I3, which permit removal of the device 2.I from the cap fitting 201. liquid into the container 200 is provided in cap fitting 20I, as shown in Fig. 5.

Device H0 is provided with an inwardly projecting rim 2 I5 which serves to trap ring nut205 and stud 204 when these are blown oiT by the explosive force of a detonator I24 into the junction box device 2 I 0 and an indicator pin 2| 6 having a press fit in a screwed stud 2II is securedin fitting 210, this pin being displaced by stud 204 to indicate that discharge has taken place.

The pressure generating cartridge 2'I8 is mounted .in a holder 2I9 having an elongated sleeve 220 provided with an orifice 22I communicating with an orifice 222 through which the ex-- plosion flashes will pass when ring nut 205 uncovers the orifice 222, similarly to the arrangement described in connection with Fig. 4.

A charging plug 2I4 for fillingv The pressure generating cartridge 2I8 is secured in holder 2 I9 by a screwed ring 223 and is provided with an ignition wick 224 which is ignited by the flash through apertures 22I and 222. A screwed disc 225 confines the ignition wick224 in a space in the elongated sleeve 220 and a spring 226 held by a screw .cap 22'! abuts against the end of screwed disc 225 to ensure that cartridge 2IB and its holder 2I9 is not displaced with respect to orifice 222 under normal storage and installation conditions. For this purpose holder 2 I9 is guided in the recess in which it is mounted in cap -I by means not shown in the drawing to prevent rotation. closed in a stand pipe 228 secured by means of a gland nut 229 in cap fitting 20I as indicated in Fig. 6. The stand pipe is fitted with a grid or particle trap fitting 230 and a pressure regulating Venturi construction 23I and a perforated cap fitting 232 is secured on the end of pipe 228, said perforated cap being provided with a num- Cartridge holder 2|.9 is enher of perforations 233 and an annular recess 234.

guidering 238 may he provided, the guide ring being secured between the top. of the bottle 200 andv cap fitting 20I as shown in Fig. 6. As will be appreciated when the. stopper and discharge block 204 is removed and the cartridge 218 commences to generate pressure the liquid will be. dischargedthrough one of the outlets passing underneath shield 23?, this fitting only being used in casesv in which the container is required to be mounted in a lying down or substantially horizontal position.

The container shown in Figs. 5 and 6 providedas described with two (or more) discharge outlets is electrically wired so that either one of the. outlets can be used to eifectdischarge or if re-= quired both can be used at the same time, :forexample to discharge fire. extinguishing liquid to either one of two power plants inan aircraft: or to both at the same time.

Upon ignition of a detonator I24 diaphragm 203 will be severed as a, result of the generation, of gas pressure in space 206, and, a stud 204 and ring nut 205 are-blown into-the junction boxfit ting 2 I 0, an explosive flash passes through holes 222 and 221i and ignites ignition substance 224 which instantaneously ignites the pressure generating cartridge 2I8, this being of the kind to gen. erate gas pressure at. its upper end in the position shown in Fig. 6. Holder 2 I9 is free to .move in stand pipe 228 and as a result of the pressure. variation-and of the restriction of parts 230 and 23I the holder 219: and, its sleeve 220 moves backwards against the pressure of spring 226 to close the outlet to aperture 222 which prevents loss of fire extinguishing fluid through aperture 222 As shown in Fig. 5 apertures 221 and 222 are provided upon both discharge orifices but owing to the position of the ring nut 205 against aper-. ture 222 flash back from one detonator to another is not possible.

As regards the devices. 230 and 23I: it. may be explained that pressure generating cartridges 2 I8 are generally designed to generate pressure gases under definitely specified pressure conditions and if, for example, the cartridge discharges gases through an openv ended pipe, as shown for ex ample in'Fig. 4, it has been found that occasionally the discharge of liquid commences under high pressure but tapers off as liquid is dis charged from the extinguisher and the gas space increases. This is considered to be due to the lowering of the back pressure against the pres sure generating cartridge.

Furthermore, when cartridges are ignited and required to generate pressure at a high rate, burning particles tend to be torn away .from the pressure generating substances. For this reason, the trap 230 is interposed to trap such particles "or to ensure that they are burnt before they pass through the restricting orifice 23I. This device regulates and restricts the pressure discharge rate from the cartridge in order to be independent of the back pressure in the container. By this means it is possible, for example, to use cartridges designed to generate pressure gases at maximum -efficiency and rate of burning at a back pressure of about 500 to 600 lbs. per square inch, the restriction 230 being designed to ensure that this back pressure is maintained irrespective of the pressure in the extinguisher. Experience has shown that by this means the maximum rate of discharge of the contents of the container is-obtained without risk of the .pres-, sure generating cartridge ceasing to burn at the most efiectivc sate owing to loss of back pressure,

: 'InFigs; 7 and 'id parts similar to corresponding parts of Figs. 4, 4a are denoted by like reference numerals and need not be further described. In the. arrangement shown in Figs. 7 and 7a. the cartridge-I36 has a percussion cap and the end of the holder I31 in the cap fitting I20 is formed as a cylinder 250 of somewhat larger bore than the rest of the holder. A block 25l fixed in one end of the cylinder 250 is formed with a central bore of two diameters, namely a larger diameter bore 252 and a-smaller diameter bore 253. -A piston 254 is slidably mounted in the cylinder 25!] and has a stem 255 engaging in the bore 252, this stem having a central bore in which is contained a striker pin 256.. In this construction the recess I33 communicates by way of a bore 251 with the interior of the cylinder 250'. A spring 258 bears against the oppositely disposed surfaces of the block 25I and of the piston 254.

In the arrangement shown in Figs. '7 and 7a on detonation of the detonators I24 to rupture the diaphragm H4, as described in connection with Figs. 4 and 4a, pressure gases pass through the bore 251 and enter the cylinder 250, pressing back the piston 254 and causing the striker pin 256 to ignite the cartridge l36.

What we claim and desire to secure by Letters Patent is:

1. A fluid container comprising a stoppering device including a frangible seal, means for rupturing said frangible seal topermit discharge of the container, means for generating pressure to eject the fluid when said frangible seal has been fractured, and means governed by the fracture of said frangible seal for initiating the operation of said pressure generating means immediately after the fracture of the frangible seal. 2. A fluid container comprising a stoppering device including a frangible seal, remote control means for rupturing said frangible seal to permit discharge of the container, means for generating pressure to eject the fluid when said frangible seal has been fractured, and means governed by the fracture of said frangible seal for initiating the operation of said pressure generating means immediately after the fracture of the frangible seal.

3. In a fluid container having a discharge outlet for the fluid contents, a frangible seal closing said discharge outlet, means for breaking said seal to provide an outlet for the fluid and pressure means for discharging said fluid, said pressure means comprising an ignitable cartridge mounted in the container and adapted on combustion to evolve pressure gases, and means governed by the fracture of said frangible seal for initiating the ignition of said cartridge to discharge the fluid contents of said container.

fl. In a fluid container having a discharge outlet for the fluid contents, a frangible seal closing said discharge outlet, explosive means for breaking said seal to provide an outlet for the fluid, an ignitable cartridge mounted in the container and adapted on combustion to produce pressure gases to discharge the fluid in the container under pressure and means forigniting said cartridge, said last mentioned means including a duct arranged to be uncovered when said seal is broken said duct being arranged within the range of said explosive means, whereby a flash from the explosion passes through said duct to.

ignite said cartridge.

- 5. In a fluid container having a discharge outlet for the fluid contents, a seal closing said discharge outlet, said seaL-comprising a member i0 5 connected to the wall of the discharge outlet by a readily fractured web integral with said wall and with said seal, electrical means for breaking said seal to provide an outlet for'the fluid, an ignitable cartridge mounted in the container and adapted oncombustion to produce pressure gases to discharge the fluid in the container under pressure, and means governed by the fracture of said frangible seal for initiating the ignition of said cartridge.

6. In a fluid container having a discharge outlet for the fluid contents, a seal closing said discharge outlet, said seal comprising a member connected to the wall of the discharge outlet by a readily fractured web integral with said wall and with said seal, electrical means for breaking said seal to provide an outlet for the fluid, said means comprising a substance adjacent the seal adapted to be exploded or detonated by said electrical means to break said seal, an ignitable cartridge mounted in the container and adapted on combustion to produce pressure gases to discharge the fluid in the container under pressure, and means for igniting said cartridge, said last men,- tioned means operating automatically after the seal is broken.

'7. A fluid container according to claim 6 comprising electrical means for igniting said cartridge, said electrical means comprising an electric circuit which is normally open and means operated by the breaking of the seal to close said circuit to ignite said cartridge. 5

8. A fluid container according to claim 6 in which said cartridge is fitted with a percussion cap and further comprising astriker pin and mechanical means operated when said seal is broken to operate said striker pin to ignite said cartridge.

9. A fluid container according to claim 6 in which said cartridge is fitted with a percussion cap and further comprising a cross-head me-. chanically connected to said seal, and a striker pin carried on said cross-head, whereby when said seal is broken said striker pin moves to strike said percussion cap.

10. A fluid container according to claim 6 in.

ated by said electrical means to break said seal,- and an ignitable substance adapted to .be ignited by a flash from said detonator when the seal is broken and to ignite said cartridge.

2. A fluid container according to claim 5 further comprising a detonator adapted to be actu-. ated by said electrical means to reak said seal, an ignitable substance disposed adjacent to said.

cartridge, and communicating means between:

said ignitable substance and said discharge outlet, saidcommunicating means being normally sealed by said seal, but uncovered when said seal is broken, whereby when said seal is broken a flash from said detonator can pass along said communicating means to. ignite said ignitablesubstance, thereby producing ignition of said cartridge.

13. In a fluid container having a plurality of discharge outlets for the fluid contents, a seal' in each of said discharge outlets to close respec-' tively said discharge outlets, each of said sealscomprising a memberconnected to the 'wall of the. discharge outlet with which it is associated by a readily fractured web integral with said wall and with said seal, separate detonator means arranged respectively to fracture one of said seals to provide an outlet for the fluid, electrical means for actuating said detonators, an ignitable cartridge mounted in the container, an ignitable substance disposed adjacent to said ignitable cartridgeand adapted to be ignited by a flash from one of said detonators after the corresponding seal has been broken to ignite said cartridge, said cartridge being adapted on combustion to produce pressure gases to discharge the fluid in the c nt iner und r pr u 1 4. A fluid container according to claim 13 having a space containing said ignitable substance, said space being disposed adjacent to said seal, and further comprising a member associated with said seal, said member blocking communication between said space and the discharge outlet closed by said seal, said member being fixedto move with said seal, whereby when said seal is fractured a flash from said detonator means can pass to and ignite said ignitable substance.

15. A fluid container according to. claim 13 further comprising a tubular holder in. which said cartridge is mounted, and a stand pipe having a sealed end in which said tubular holder is mounted, the arrangement being such that when said cartridge is ignited the pressure gases evolved can readily fracture said sealed end and escape into the container.

16. A fluid container according to claim 4 further comprising a tubular holder in which said cartridge is mounted, a stand pipe in which said tubular holder is mounted, and means associated with said stand pipe for restricting the flow or pressure gases therefrom into the container when said cartridge is ignited.

17. A fluid container according to claim 4 further comprising a tubular holder in which said cartridge is mounted, a stand pipe in which said tubular holder is mounted, and means associatedi with said stand pipe for restricting the flow of pressure gases therefrom into the container when said: cartridge is ignited, said! restricting means comprising at least one perforated member associated with the stand pipethrough which the pressure gases must pass. Y

18: A fluid container according to claim 13 further comprising a tubular holder in which said cartridge is mounted, and a stand pipe having a sealed end in whichsaid tubular holder is mounted, the arrangement being such that when saidcartrid'ge is ignited the pressure gases evolvedcan readily fracture said sealed end and escapeinto the container, and; means for restricting the outflow of pressure gases from. said stand pipe intothe container.

19. A fluid container according to claim 13 furthercomprising a tubular holder in which said cartridge is mounted, and a stand pipe having a, sealed end in which said tubular holder is mounted, the arrangement being such that when said cartridge is ignited the pressure gases evolved can readily fracture said' sealed: end and escape: into the container, and means comprising at least oneperforated member associated with the stand pipe-for restricting the outflow of pressure gases from said stand pipe into the container.

20. v A fluid container according toclaim 13 further comprising a, tubular holder in which said cartridge is mountcd,,and a stand pipe having a sealed end in which said tubular holder is mount ed, the, arrangement being such. that when. said.

cartridge is ignited the pressure gases evolved can readily fracture said sealed endandescape into the container, said sealed endcomprising a closure cap fitted over the. end of the stand pipe and having a perforated wall over whichthe seal is fixed.

21. A fluid container according to claim-A fur;- ther comprising aftubular holder in which said cartridge is mounted, a stand pipe in which said tubular holder is mounted, and means associated with said stand pipe for restrictingthe flow of pressure gases therefrom into the container when said cartridge is. ignited, said restricting means comprising two perforated members and a Veilturi tube disposed in the stand pipe between said perforated members. l

22. A fluid container according to claim 13 having a space containing said ignitab'l'e substance, said space being disposed adjacent tosaid seal, acartridgeholder in' which said cartridge is mounted, two discs screwed intothe bottom of said cartridge holder to. define: said space, one of said discs. having an aperture to provide com munication withsa'id' cartridge. and further com prising. a member associated with said seal, said member blocking communication between said space and they discharge. outlet closed bysaidseal, said member being fixed to move with saidseah whereby'when saidseal is fractured a flash from said detonator med-115102.11 pass to and ignite said ign-itable substance;

23. A fluid container according to claimv 13 having an open end andconiprisingia holder in which said cartridge and said ignitable sub stanceare disposed, an. integral fitting bored to form two discharge outlets and. to receive the end of said cartridgeholden. said: seals having the form of plugs formed integral. with the wa'11s:.of said discharge outlets;

24. A fluideontainer according to claim t3 having an open. end and. comprising a. holder which said cartridge andsaid-ign-i-table substance are disposed, an integral fitting bored to form two discharge outlets and to; receive; the, end. of said cartridge holder, said! seals having; the formi of plugs. formed integral with the walls of. said discharge outlets, and a guide shield securedhee tween thenecl; of the container and said integral fitting to guide the fluid to be discharged through said outlet.

25. A. fluid container according. to claim 13-: having an openi end and comprising. a holder-ins. which. said cartridge and said. ig-nitable; substance are disposed, anintegralfltting bored to form bWQ': discharge outlets andto receive the end of. said. cartridge holder. saidse als; havingthe; form-of: plugs formed integral.withv thewalls of said. charge outlets, a junction. boa having two diiien ently directed outlets communicating respectively with said. discharge. outlets and an. ind-i.- Gator pin in said junctionboX displaced ioiindicate when discharge. has taken, place.

ANDERS MATHISEN; HARRY BECKHAM REF-EBENGES (BI-TED: The. following references are of record in the file of this patent: UNITED STATES PATENTS; 

